Home / 2,862.02-3,948.09-2,162.18

Finding the Fourth Proportional to 2,862.02, 3,948.09 and 2,162.18

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Solution

The fourth proportional to 2,862.02, 3,948.09 and 2,162.18 is: 2,982.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.02 : 3,948.09 = 2,162.18 : x
  2. Step 2: Convert to fraction form
    2,862.02/3,948.09 = 2,162.18/x
  3. Step 3: Cross multiply
    2,862.02x = 3,948.09 × 2,162.18
  4. Step 4: Simplify right side
    2,862.02x = 8,536,481.24
  5. Step 5: Solve for x
    x = 8,536,481.24/2,862.02
  6. Step 6: Final answer
    x = 2,982.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.